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powerpc/64s: Fix replay interrupt return label name 

In __replay_interrupt() we take the address of a local label so we can
return to it later. However the assembler turns the local label into a
symbol with a name like ".L1^B42" - where "^B" is literally "\002".
This does not make for pleasant stack traces. Fix it by giving the
label a sensible name.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2017-08-22 11:51:37 +10:00
parent 215ee763f8
commit 3e23a12bca
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kernel/exceptions-64s.S
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@ -1671,7 +1671,7 @@ _GLOBAL(__replay_interrupt)
* we don't give a damn about, so we don't bother storing them.
*/
mfmsr r12
LOAD_REG_ADDR(r11, 1f)
LOAD_REG_ADDR(r11, replay_interrupt_return)
mfcr r9
ori r12,r12,MSR_EE
cmpwi r3,0x900
@ -1689,7 +1689,7 @@ FTR_SECTION_ELSE
cmpwi r3,0xa00
beq doorbell_super_common_msgclr
ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE)
1:
replay_interrupt_return:
blr
_ASM_NOKPROBE_SYMBOL(__replay_interrupt)